Home / 222,090.12-306,484.34-121,487.88

Finding the Fourth Proportional to 222,090.12, 306,484.34 and 121,487.88

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Solution

The fourth proportional to 222,090.12, 306,484.34 and 121,487.88 is: 167,653.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,090.12 : 306,484.34 = 121,487.88 : x
  2. Step 2: Convert to fraction form
    222,090.12/306,484.34 = 121,487.88/x
  3. Step 3: Cross multiply
    222,090.12x = 306,484.34 × 121,487.88
  4. Step 4: Simplify right side
    222,090.12x = 37,234,132,719.80
  5. Step 5: Solve for x
    x = 37,234,132,719.80/222,090.12
  6. Step 6: Final answer
    x = 167,653.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.